Ventilator



G. HANSON.

VENTILATR.

APPLICATION FILED APIIJ, 1920.

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Specification of Letters Patent.

Patented Oct. 18, 1921.

Application filed April 7, 1920. Serial No. 371,923.

To all 'whom it may concern.'

Be it known that I, GEORGE HANsoN, a citizen of Sweden, residing at Wilmington, in the county of New Hanover and State of North Carolina, have invented certain new and useful Improvements in Ventilators, of which the following is a specification.

This invention relates to improvements in ventilators and its prime-object is to pro vide Ventilating means aboard ship for cabins, bath rooms and such compartments generally as may need ventilation. A further object is to provide a ventilator that is very simple in construction and arrangement of parts, eilicient and automatic in operation` With the foregoing and other objects in view the invention consists in the combination and arrangement of parts to be hereinafter fully described, pointed out in the appended claims and illustrated in the accompanying drawings which form a. part of this specification and in which- Figure l is a longitudinal sectional view through a ventilator constructed according to my invention illustrating its application.

Fig. 2 is a similar view of a modified form of ventilator.

Fig. 3 is a view of a slightly modified form of ventilator.

Fig. i is a top plan view of Fig. 3.

Like reference characters denote corresponding parts throughout the several views.

The reference numeral 1 denotes the roof or wall of a deck house or other compartment to be ventilated and 2 the draft opening therein. About the draft opening and secured to the wall l is the flanged collar 3. In the form of ventilator shown in Fig. 1 I provide an insert tube 4 suitably secured to the collar 3 and arranged upon the end of the collar 3 is the hollow stem 5 of the cowl 6, said stem rotating around said insert tube. The body portion of the cowl is disposed horizontally and it is provided at one end with the mouth piece 7 so hinged thereto that it may be manually moved into a position at right angles to the body of the cowl, as shown in dotted lines, or vice versa. This arrangement permits a horizontal ora vertical air intake. The body portion of the cowl preferably tapers slightly from the hinged to the non-hinged end. A baiie plate 8 is provided within the body of the cowl which extends partly over the stem 5, said stem communicating with the cowl body., the free end of said baflie plate being bent inwardly as shown. Air blowing through the cowl from the mouth piece 7 will strike the baiiie plate and so not blow down the stem 5 and a draft through said stem and through the insert tube 4L is thus created thus Ventilating the compartment.

In Fig. 2 the collar 3 is formed with a substantially semicircular groove 9 into which the end of a screw 10 is disposed that connects the said collar to the rotary stem 5 of the cowl 6, the cowl stem and collar being screwed one into theother as shown. In this case the stem and baffle plate 8 are formed integral with the cowl body and the said body is formed with the two mouths 7, 7ZL separated by the baffle plate 8a and air coming in from either or both mouths will rush through the cowl and create a draft in the stem and ventilata the compartment. This form of cowl can only be swung half way around and back.

In the form of cowl shown in Figs. 3 and 4 the cowl body 6 is formed with'the raised threaded annular shoulder ll obliquely disposed and engaged by the threaded flange 12 of the mouth piece 7. A set screw 13 serves to retain the mouth piece in adjusted position with relation to the cowl body. The mouth piece may be manually turned upon the cowl body so that it is disposed at right angles thereto or in alinement therewith to receive air drafts coming in a horizontal or vertical plane.

What is claimed is l. In a ventilator, a cowl, a stem communicating therewith,v a collar operatively supporting said stern, a baffle plate at the junction of said cowl body and stem, and a mouth piece adjustably secured to one end of said Acowl body whereby -air may be introduced into said cowl at different angles thereto.

2. In a ventilator, a cowl, a stem com-` municating therewith, a collar operatively supporting said stern, a baille plate at the junction of said cowl body and stem, a raised threaded annular shoulder formed upon one end of said cowl body at an oblique angle thereto, a mouth piece, and a threaded flange formed upon said mouth piece and disposed at :1n oblique angle thereso for adjustable engagementwith seid annular shoulder, the movement of said flange upon said shoulder causing an adJustment of seid mouth piece with relation'to said cowl.

In testimony thet I claim the foregoing as my own I have hereto aflixedfniy signa-Y ture inthe presence of two subsoribingwib 

